1133239811 has 8 divisors (see below), whose sum is σ = 1269674544. Its totient is φ = 1002373920.

The previous prime is 1133239777. The next prime is 1133239847. The reversal of 1133239811 is 1189323311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1133239811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1133239411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1391780 + ... + 1392593.

It is an arithmetic number, because the mean of its divisors is an integer number (158709318).

Almost surely, 2^1133239811 is an apocalyptic number.

1133239811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1133239811 is a deficient number, since it is larger than the sum of its proper divisors (136434733).

1133239811 is a wasteful number, since it uses less digits than its factorization.

1133239811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784421.

The product of its digits is 3888, while the sum is 32.

The square root of 1133239811 is about 33663.6274189220. The cubic root of 1133239811 is about 1042.5749222224.

The spelling of 1133239811 in words is "one billion, one hundred thirty-three million, two hundred thirty-nine thousand, eight hundred eleven".